Hardness
Unavailable
No qualifying site within 75 miles
Local water dashboard
Official source aggregationA source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Fairbanks North Star Borough.
At a glance
EPA quarter 2026Q2
Hardness
Unavailable
No qualifying site within 75 miles
Compliance screen
Review needed
16 active health-based records
Lead 90th percentile
0.0024 mg/L
16% of action level
Utility match
10 systems
Serves 78,324 people system-wide
Hardness estimate unavailable
We did not find enough qualifying recent USGS hardness observations within 75 miles of this ZIP centroid. We leave the value blank instead of substituting a state average. Ask the serving utility or test the household tap for a property-specific result.
EPA benchmark screen
Available numerical results from associated SDWIS community water systems, compared with the applicable action level or federal MCL. Federal measured-value coverage is incomplete.
Lead (PB90)
0.0024 mg/L
Reported Dec 31, 2025
Copper (CU90)
2.49 mg/L
Reported Dec 31, 2025
Numerical coverage
2 comparable results
Missing values remain blank; absence is not treated as a pass.
Measured in mg/L
Local 0.0024
EPA limit 0.015
Measured in mg/L
Local 2.49
EPA limit 1.3
100% line = listed limit
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Lead and Copper Rule | AK2310895 | Resolved | Feb 14, 2026through Mar 9, 2026 |
| Groundwater Rule | AK2310277 | Resolved | Feb 6, 2026through Feb 17, 2026 |
| Lead and Copper Rule | AK2310926 | Resolved | Nov 13, 2025through Dec 1, 2025 |
| Groundwater RuleHealth-based | AK2310895 | Unaddressed | Nov 13, 2025 |
| Groundwater RuleHealth-based | AK2310895 | Unaddressed | Nov 13, 2025 |
| Groundwater RuleHealth-based | AK2310895 | Unaddressed | Nov 13, 2025 |
| Revised Total Coliform RuleHealth-based | AK2310895 | Unaddressed | Nov 7, 2025 |
| Revised Total Coliform Rule | AK2310895 | Resolved | Aug 1, 2025through Aug 31, 2025 |
| Groundwater RuleHealth-based | AK2310926 | Unaddressed | Jul 13, 2025 |
| Lead and Copper Rule | AK2310926 | Resolved | Jul 1, 2025through Jul 11, 2025 |
| Consumer Confidence Rule | AK2313233 | Resolved | Jul 1, 2025through Sep 15, 2025 |
| Revised Total Coliform Rule | AK2310895 | Resolved | Jul 1, 2025through Jul 31, 2025 |
| Endrin | AK2310895 | Resolved | Jul 1, 2025through Sep 30, 2025 |
| BHC-GAMMA | AK2310895 | Resolved | Jul 1, 2025through Sep 30, 2025 |
| Diquat | AK2310895 | Resolved | Jul 1, 2025through Sep 30, 2025 |
| Di(2-ethylhexyl) adipate | AK2310895 | Resolved | Jul 1, 2025through Sep 30, 2025 |
| Simazine | AK2310895 | Resolved | Jul 1, 2025through Sep 30, 2025 |
| Picloram | AK2310895 | Resolved | Jul 1, 2025through Sep 30, 2025 |
| Dinoseb | AK2310895 | Resolved | Jul 1, 2025through Sep 30, 2025 |
| Carbofuran | AK2310895 | Resolved | Jul 1, 2025through Sep 30, 2025 |
No reported violation does not prove that every contaminant was tested or absent; SDWIS measured values are incomplete and lag state records.
Solutions matcher
Matched to Fairbanks ZIP 99703 using available compliance data and 2 reported measurement benchmarks.
Drinking water protection
Copper (90th percentile), Groundwater Rule, Revised Total Coliform Rule have a measured benchmark flag or active health-based SDWIS record in this profile.
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Frequently asked
EPA ECHO reports 16 active health-based violations among the associated community water systems. Review the affected utility's current notice and Consumer Confidence Report.
There are not enough qualifying nearby USGS observations for a responsible hardness estimate. Ask the serving utility or test the household tap.
There is no high-hardness trigger in this profile. Confirm with a tap test before buying equipment.